96

A7

the beta part of existential graphs.

I did succeed, last time, in explaining alpha
graphs. The black board except such portions as
may be separated from the rest by “cuts,” so-called,
is the sheet of assertion. Every graph, or proposition, scribed
upon it is asserted. If two graphs, or propositions, are
scribed upon it, each is asserted independently
of the other; and it makes no difference on what
part of the sheet a graph is scribed, so
long as they are on separate parts of the
sheet. The sheet is itself a graph-replica, or
the expression of a proposition; namely it is
to be interpreted as expressing whatever is well-known
to be true concerning the universe of discourse.
Every blank part of the sheet is to be understood